AT90S8515

Manufacturer Part NumberAT90S8515
Description8-bit microcontroller with 8K bytes in-system programmable flash, 2.7-6.0V
ManufacturerATMEL Corporation
AT90S8515 datasheet
 
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Page 89/112:

Serial Programming Characteristics

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Serial Programming
Characteristics
0841G–09/01
Figure 66. Serial Programming Timing
MOSI
t
OVSH
SCK
MISO
Table 33. Serial Programming Characteristics, T
(unless otherwise noted)
Symbol
Parameter
1/t
Oscillator Frequency (V
CLCL
t
Oscillator Period (V
= 2.7 - 4.0V)
CLCL
CC
1/t
Oscillator Frequency (V
CLCL
t
Oscillator Period (V
= 4.0 - 6.0V)
CLCL
CC
t
SCK Pulse Width High
SHSL
t
SCK Pulse Width Low
SLSH
t
MOSI Setup to SCK High
OVSH
t
MOSI Hold after SCK High
SHOX
t
SCK Low to MISO Valid
SLIV
Table 34. Minimum Wait Delay after the Chip Erase Instruction
Symbol
3.2V
t
18 ms
WD_ERASE
Table 35. Minimum Wait Delay after Writing a Flash or EEPROM Location
Symbol
3.2V
t
9 ms
WD_PROG
AT90S8515
t
t
SLSH
SHOX
t
SHSL
t
SLIV
= -40 ° C to 85 ° C, V
A
Min
Typ
= 2.7 - 4.0V)
0
CC
250.0
= 4.0 - 6.0V)
0
CC
125.0
2.0 t
CLCL
2.0 t
CLCL
t
CLCL
2.0 t
CLCL
10.0
16.0
3.6V
4.0V
14 ms
12 ms
3.6V
4.0V
7 ms
6 ms
= 2.7V - 6.0V
CC
Max
Units
4.0
MHz
ns
8.0
MHz
ns
ns
ns
ns
ns
32.0
ns
5.0V
8 ms
5.0V
4 ms
89